17 ideas
21544 | It seems that when a proposition is false, something must fail to subsist [Russell] |
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
21539 | Excluded middle can be stated psychologically, as denial of p implies assertion of not-p [Russell] |
21538 | If two people perceive the same object, the object of perception can't be in the mind [Russell] |
21534 | The only thing we can say about relations is that they relate [Russell] |
21540 | Relational propositions seem to be 'about' their terms, rather than about the relation [Russell] |
16980 | We need a logical use of 'object' as predicate-worthy, and an 'ontological' use [Strawson,P] |
21536 | When I perceive a melody, I do not perceive the notes as existing [Russell] |
21535 | Objects only exist if they 'occupy' space and time [Russell] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
16979 | It makes no sense to ask of some individual thing what it is that makes it that individual [Strawson,P] |
21533 | Contingency arises from tensed verbs changing the propositions to which they refer [Russell] |
21537 | I assume we perceive the actual objects, and not their 'presentations' [Russell] |
21532 | Full empiricism is not tenable, but empirical investigation is always essential [Russell] |
21542 | Do incorrect judgements have non-existent, or mental, or external objects? [Russell] |
21541 | The complexity of the content correlates with the complexity of the object [Russell] |
21543 | If p is false, then believing not-p is knowing a truth, so negative propositions must exist [Russell] |